Machine for washing sugar.



Patented 1an. 28, |902. L. mms. MACHINE FOR WASHING SUGAR.

(Application tiled June 7, 1899.)

2 Sheets-Sheet l.

(No Model.)

Tn: Nonms PETERS do, FNoaLl'rNo., WASHINGTON. u. c.

No. a9|,a99. Patented 1an. l23, |902.

L. FucHs. y MACHINE FUR WASHING SUGAR.

(Application filed June 7, 1899.) V (No Model.) 2 Sheets-Sheet 2.

llN-rTEn STATES PATENT OFFICE.

LUDWIGFUCHS, OF LUNDENBURG, AUSTRIA-HUNGARY.

MACHINE FOR WASHING SUGAR.

SPECIFICATION' forming part of Letters Patent No. 691,899, dated January28, 1902. Application filed June 7,1899. Serial No. 719,694. (No model.)

T0 all whom t may concern.'

Be it known that I, LUDWIG FUCHS, a subiect of the Emperor ofAustria-Hungary, residing at Lu ndenburg, in the Province of Moravia, inthe Empire of Austria-Hungary, have invented certain new and usefulImprovements in Machines for Washing Sugar; and I do hereby declare thefollowing to be a full, clear, and exact description of the in- Vention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters of reference marked. thereon, which form a part of thisspecification.

This invention has relation to appliances for washing or clearing sugar,and more particularly to that class of appliances comprising a swingingspray-pipe adapted to be swung into and out of the centrifugal andprovided with a cut-olf device operating to cut od the supply of claircefrom the spraypipe when the latter is swung out of the ceutrifugal.

My invention has for its object means for adjusting the length of thespray-pipe relatively to the height of the basket Aof-the cen- Ytrifugal.

It has for its further object a peculiar coustruction of spraying-nozzleand the combination therewith of means whereby the area t0 be covered bythe clairce can be varied within certain limits.

Finally, the invention has for its object the combination, with theswinging spray-pi pe, of a peculiar cut-off device.

That my invention may be fully understood, I will describe the same indetail, reference being had to the accompanying dravings, in which-Figures 1 and 2 are fragmentary vertical sections of a centrifugalequipped with my improved washing appliances. Figs. 3 and Il arefragmentary top plan views of Figs. l

and 2, respectively, shown partly in section, the spray-pipe being shownas swung out of the centrifugal; and Fig. 5 is a detail sectional viewof the outer end of the spray-pipe and its nozzle.

On the head of the centrifugal A is arranged a plate ct, adjustabletoward and from the axial space of said centrifugal by means of boltsa', passing from the head of the centrifugal through slots o? in saidplate and carrying suitable lock-nuts. The plate u, has ,secured theretoor formed integrally therewith a tubular union b, screw-threaded intel'-nally at its upper flanged end for the reception of a valve-,seat plugb' for a cone-valve o, moving freely in the union l) and being providedwith guide-ribs o. To the plug b is screwed a `coupling-sleeve b2, bymeans of which the clairce feed-pipe c is coupled to union b in awell-knownvmanner. The spraypipe d extends into the coupling b and hasan attenuated screw-threaded portion d fitting the aforesaid internal-screwthreaded portion of union b, the inner end` of said attenuatedextension lying close to the ribbed stem of valve o, and the pitch ofthe screwthreads and the travel of the valve o to its seat are soadjusted that when the pipe d is swung around an arc of a circle ofabout one hundred and eighty degrees in one direction the pipe d willmove into union b sufficiently to carry the valve 'u to its seat in plugb', and thus cut od communication between the clairce feed-pipe c andsaid pipe d. On the other hand, when the valve fu is seated the portionof greater diameter of pipe ol abuts against a shoulder b3 in tube l),with a view to provide a second cut-olf in case of leakage at the valve.The spray-pipedextends through a flanged sleeve d2, by means of whichand a coupling-sleeve (Z3 it is coupled to the tubular union l), as moreparticularly shown in Fig. 3.

The spray-pipe d is an angle or L pipe made in two sections screwinginto each other, as shown so that the leg d5 d6 may be len gthened orshortened relatively to the height of the mass of sugarin the basket ofthe centrifugal. Although I prefer the construction described, it isobvious, however, that the spray-pipe d may have formed thereon thecasing or barrel of a stop-cock, as shown at d4, Fig. 4, and theunion-pipe b, constructed in the form of a stop-cock plug having a portleading into said casing and so located relatively to the inlet of piped as to be out of register therewith when the said pipe is swung out ofthe centrifugal, Fig. 4,and in register when swung into the centrifugal,Fig. 2.

In the arrangement shown in Fig. 3 the IOC valvefhas free play incylinderb and is of a well-known construction, the arrangement beingsuch that when the spray-pipe d is swung out of its operative position,Fig. l, into the position shown in said Fig. 3the said pipe d will bescrewed into cylinder b and move the valve fto its seat to cut off theclairce from the spray-pipe. When, on the contrary, the spray-pipe isswung into its operative position, Fig. l, the said pipe is screwed outof cylinder b and .caused to recede from the valvef, the latter beingthen unseated by the pressure of the clairce in pipe c.

The nozzle end of the angle-pipe CZ is formed at right angles to thesection d3, so that when said pipe is swung into the 'centrifugal thenozzle `will face the inner wall thereof. The

nozzle portion 7c of pipe d has an internal, spiral fluid-passage Zd,and in the otherwise,"y smooth bore of said portion Zt is fitted aninternally-screw-threaded sleeve h, into which is screwed a conical plugg. Onto the nozzle portion 7c of pipe OZ is screwed the sprayingcap l,provided in its outer face with a conical axial recess Z2 incommunication with a similar recess Zl in the inner face, concentric`with the cone of plug g. The spraying-cap Z has. a Iiange or projectionh' encompassing the recess Z' and forming a central fluid-chamber fm andan encompassing packing-chainber for the reception of a suitablepackinggasket m. Inasmuch as the clairce is fed to the spraying-nozzleunder pressure, it acquires a swirling or rotary movement as it flowsthrough the spiral passage 7c' and thence into chamber m about the coneof plug g and issuing from the cap Z is converted by the eX- ternal'conical recess Z2 in said cap into a cone. It is obvious that if thediameter of said external recess Z2 is in proper proportion relativelyto the height of inner wall of the basket of the centrifugal the cone ofspray will cover the entire area of said wall in a vertical directionand a similar area in a horizontal direction, hence a much greater areathan could be covered by a perforated spray-pipe. On the other hand, byadjusting the plugg nea-rer to or farther from the outlet-port in cap Zthe volume of clairce sprayed onto the sugar can be varied, while thenozzle can readily be adjusted to the height of the sugar in the basketby screwing the leg member @Z6 into or out of the leg member d5 ofspray-pipe d, as will be readily understood. Finally, by adjusting thesupport a for the union-pipe b toward or from the axis of thecentrifugal the nozzle of spray-pipe d can bebrought nearer 1.o orfarther from the inner wall of the basket andthe sugar therein, andthereby distribute the clairce over a greater or less area with greateror less force.

Having thus described my invention, what I claim as new therein, anddesire to secure by Letters Patent, is-

1. The combination with the basket of a centrifugal machine, of aclairce feed-pipe and a spray-pipe connected therewith to re- Volve on ahorizontal axis and to be turned into and out of said basket, avalve-chamber in the connection between the two pipes, a valve-seattherein, and a valve arranged to be moved off its seat by the pressureof the liquid in the clairce feed-pipe and to be moved to its seat bythe spray-pipe when turned out of said basket, substantially as setforth.

2. The combination with the feed-pipe c and spray-pipe d provided withan external screw-thread, of the union?) provided with a correspondinginternal screw-thread, a coupling coupling union b to pipe oZ so as toenable the latter to turn freely, a valve-seat plug b' screwed into theopposite end of union b and coupled to feed-pipe c so` as to adapt thelatter to turn freely and the cone-valve fu, substantially as and forthe purpose set forth.

3. The combination with the basket of a centrifugal machine, of a,clairce feed-pipe E extending over the top of said basket beyond l itsinner wall, a spray-pipe connected with said feed-pipe to revolve abouta horizontal `axis,'an^d to swing into and out of the basket,

said spray-pipe of such a length as to bring its spraying-nozzle aboutmidway of the inner vertical wall of the basket, said spraying nozzleorganized to distribute the clairce over the full length of the innerwall of said basket, and a valve in the connection of the two ypipesadapted to be unseated by pressure in the feed-pipe and lo be positivelyseated by the spray-pipe when turned out of the basket, substantially asset forth.

4. The combination in a machine such as `described with the spray-pipeCZ, a sleeve itted in theout-let thereof, a directing-cone ttedfluid-tight in said sleeve, and a spiral groove between the pipe andsleeve; of a cap secured to said outlet of pipe d, said cap hav-v ing aconical recess in its outer and inner faces concentric with thedirecting-cone and in communication with each other, and a chamberbetween said cone and capin communication with the aforesaid spiralgroove.

5. The combination with the basket of a centrifugal machine, of aclairce feed-pipe extending over the top thereof beyond its inner walland adjustable toward and from the latter, a spray-pipe connected withthe inner end of said feed-pipe to be swung into and out of said basket,a valve-seat in said connection and a cut-off valve adapted to be movedfrom its seat by pressure on the claircepipe and to its seat by thespray-pipe when swung out of the basket, for the purpose set forth.

vIn testimony that I claim the foregoing as my invention I have signedmy namein presence of two subscribing witnesses.

LUDWIG FUCHS.

Witnesses:

J osier1 RUBERCH, ALvEsTo S. HOGUE.

TOD

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